Stamping-machine.



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P. WHEEL.

STAMPING MACHINE.

APPLICATION FILED JUNE 1, 1914.

1, 127,704. Patented Feb. 9, 1915.

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F. WHEEL, STAMPING MACHINE. APPLICATION FILED JUNE 1, 1914.

1,1 27,704. Patented Feb. 9, 1915.

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FRIEDRICH WEBEL, OF WEST HOBOKEN, NEW JERSEY.

STAMPING-MACHINE.

Application filed June 1, 1914.

chines in which a series of dies or punches are carried by a rotatabledie head to stamp or punch a character or characters upon a plate, suchas a name plate, a key check and the like. In this type of stampingmachine a character dial is rotatable with the die head to indicate theproper positioning; of the dies. However, the rotating or whirlingaround of the character dial tends to confuse the operator with theresult that a wrong character is stamped or punched upon the plate.

It is the principal object of the present invention to overcome theabove disadvantage of the confusion arising from the rotating of thecharacter dial, and for which purpose I provide a fixed character dial,preferably in superposed relation to the die head, and connect to thedie head to rotate therewith an indicatorv or pointer tov indicate onthe dial the proper positioning of the die head.

Further objects of the invention relateto improved means to slidablysupport the dies or punches by the die head, tomeans to actuate thedies, and to adjustable means to feed or'advance the plate upon whichthe characters are to be puncheda predetermined distance upon eachoperation of the die actuating means.

In the drawings accompanying and forming a part of this specification,Figure 1 is. a plan view of a stamping machine illustrating anembodiment of my invention. Fig. is a side elevation, partly in section.Fig. 3 is an enlarged sectional detail view of die mechanism. Fig. 4 isan enlarged fragmentary perspective view to illustrate the means toregulate the feeding or advancing of the plate upon which a character isto be stamped. Fig. 5 is a fragmentary sectional view in perspective ofthe die head. Fig. 6 is a perspective view of a portion of the spring tomaintain the diesin the die head. Fig. 7 is a perspective view of thepreferred form of die. Fig. 8 is a sectional view of a portion of amodified form of die head.

Specification of Letters Patent.

PatentedFeb. 9, 1915.

Serial No. 842,009.

Fig. 9 is a perspective view of a modified form of die to be utilized inconnection with the construction of die head shown in Fig. 8. Fig. 10 isan enlarged side elevation, partly in section, showing a modified formof character dial mounting; and Fig. 11 is a similar view to Fig. 10showing a still further form of mounting the character dial iinddtheconnecting of the pointer to the die iea Similar characters of referencedesignate like parts throughout the dilferent views of the drawings.

In the embodiment of my invention illustrated in drawings the operativemechanism is mounted upon a base or framework (designated in a generalway by F). A circular die carrying head 12 is fixed adjacent one end ofsaidbase to a stud shaft 13 rotatably mounted in the base, said headhaving a central boss to rest upon the base and a collar 14 fixed to theshaft on the opposite side of the base preventing axial movement of theshaft.

The head 12 is preferably circular in shape and has a lateral annularflange 15 provided with a series of radial recesses or slots 16, theside walls of which recesses incline from the top to ,the bottom for apurpose to be hereinafter described. The periphery of the head also hasa series of slideways or slots17 extending in a direction axially withthe head, and said slideways correspond to'and are in line with therecesses 16. Slidably mounted in the slideways are dies or punches 18having a characterat one end which is at the bottom of the head. Thesepunches correspond in form to the shape of the slideways and aremaintained in the slideways so that the upper ends are flush with thebottom of the recesses 16 by a spring or springs, in the presentinstance consisting of a resilient circular comb 19, the teeth of whichcomb cor respond with the number of dies. This comb is fixed to thebottom of the die head so that the teeth are in line .with but comebelow the slideways 17 and are of such length that they will projectbeyond the walls of such slideways and adapted to engage in a notch inthe punches, as clearly shown in Fig. 3. To prevent radial or lateraldisplacement of the dies I provide an annular band 23, said band havinga knurled portion (as shown in Fig. 2) to facilitate the adjusting ofthe 'die head or carrier.

. rotatably meunted in the base.

Fixed to a lug 20 projecting up from the base (Fig. 2) is a characterdial 21 so that it will be superposed to the head 12, the dial having acentral opening through which the shaft 13 projects and to whichprojecting end of the shaft a pointer or indicator 22 is fiXed'toindicate on the dial the proper positioning of the head 12. I

A plate or check 24, in the present instance circular in shape, uponwhich to punch a character or characters, is supported in a recessedportion of a disk 25, said disk being located in a recess in the topofthebase so that the disk with the plate will be flush with the top ofthe base. and come below'the die carrier and dies and permit ofthepu'nching of the characters adjacent the periphery of the plate. Theplate is maintained onthe support 25 by a resilient finger 27, and toprevent rotative movement of the plate relative to the support a'pin 28in the support projecting above the-surface thereof engages in anopening provided in the plate 24. i

' 'flldimp'art sliding movement to a die or punch to stamp a characteron the plate 24 1 provide a rocker arm 29 .pivotally supported betw'eenapair of lugs 30 projecting up from theb'a'se, a plunger 30 being carriedby said'arm and passing through an opening in are dial 21, the end ofwhich plunger is beveled to correspond with the recesses 16, whereby thepressure will be centralized on the end of the die or punch. Movement isimparted to the arm 29 and thereby through the plunger to the dies'by ahand lever 31* also pivotally supported between'the lugs 30f and havinga fulcrum connection with the arm 29, asshownat 32 in Fig. 2. When thelever- 31 is' dep'ressed a die is forced dov'vnward against the plate 24against the tension of the teeth of the comb 19, and when pressure onthe lever is releasedv it is returned'to initial position by a spring32, thete'ns'ion of the comb finger returning the die to initialposition. 'The downward movement ofthe lever 31 is limited by a stopinthe form of a set screw 33. I

'To" intermittently feed or 2 advance the plate su port-25 and plate 24a predetermined distance to permit of stamping the characterssuccessively upon the plate I secure to the stud 26 below the base F aratchet wheel '34. This ratchet wheel and thereby the plate carrier 25is rotated by a. spring influenced pawl 35 after each depression of thelever 31 and a character has been stamped upon the plate 24. For thispurpose IfiX to the lever31 a cam 36 which is adapted to engagewith afriction roller 37 on' an'arm 38 liked to a pin or stud 39 Fixed tothe'ehd of the stu'd39 below the base is a bell crank lever 40 upon onearm of which thepawl is pivotally "supported. As the lever 31 isdepressed and the cam 36 engages with and throws the arm in thedirection of the arrow (Fig. 1) it throws the bell crank lever in thedirection of the arrow causing the pawl to ride over the teeth of theratchet, and when the lever 31 is returned to initial position "by thespring the spring 41 connected to the other arm of the bell crank leverwill return the latter and cause it to abut against a stop 42 carryingwith it the pawl which caused to engage with the teeth of the ratchetand rotate the latter.

To regulate the feed or adjustment of the plate carrier 25 the stop 42is in the form of a rotatably adjustable cam fixed to the lower end ofapin 43 rotatably mounted in the base, a spring detent 44 being fixed tothe upper endof thepin 43 which is adapted to engage ineither one of aseries of notches in a segment 45 projecting up from the base, thedetent being provided with a fingerpiece to facilitate the adjustment ofthe same and the cam. It will be obvious from Fig. 4 of the drawingsthat by adjusting the detent to the left the cam will project fartherinto the path of the lever 40 and limit the movement'thereof, and viceversa, and thereby through the pawl 35 limiting the rotative adjustmentof the ratchet wheel and plate carrier 25.

In Fig. 9 I have shown a modified form of die 18; which is circular inform in cross section. When this type of die is utilized instead ofproviding the die head with the slideways in the periphery, said diehead is provided with a series of circular openings adjacent theperiphery, (as shown in Fig. 8,) in whichthe dies 18 slidably engage andis retained'against sliding movement by the resilient comb 19 the sameas when the dies 18 are utilized. In this construction it is notnecessary'to provide the band 23 nor the radial recesses 16. However,the die head has a knurled portion to facilitate the adjustmentof thesame. The endsof the dies 18 are provided with a recess 46 the sidewalls of which incline from the top to the bottom to correspond with theshape of the plungers 30 and thereby centering the pressures on the die;

In the construction shown in Fig. 10 the stud shaft 13 is fixed in thebase and the die head is rotatable thereon, the dial 21 being in theform of an annular band with charact ers thereon extending around thedie head and secured to the base, the pointer 23 to indicate thepositioning'of the die head being secured to the head and having aportion to project over the annular dial 21. To prevent the removal ofthe dies there is fixed to the top of the stud 13 a plate 47 havingopenings adjacent the periphery and in line'wi'th the dies to guide theplungers 30.

In theconstruction shown in Fig. '11 the stud 13 is also fixed and thedie head is rotatable thereon and the character dial 21 is fixed to thetop of the stud, the pointer or indicator being fixed to the side of thedie head and having a portion to extend over the dial.

Variations may be resorted to within the scope of my invention.

Having thus described my invention, I claim:

1. In a stamping machine, the combination of a fixed character dial; arotatable head having means to indicate on the dial the positioning ofthe head; a series of dies slidably carried by the head; a lever toimpart sliding movement to the dies; a rotatable support for a plateupon which the characters are to be stamped; a ratchet wheel connectedto said support; and a pawl actuated by the lever when a die is actuatedto rotate the ratchet wheel and the connected plate support apredetermined distance.

2. In a stamping machine of the character specified, the combination ofa rotatable head having means to indicate thepositioning thereof; aseries 01": dies slidably carried by the head; a support for a plateupon which characters are to be stamped; a rocker connected at one endto the dies to impart sliding movement thereto; and a lever connected tothe other end of the rocker to actuate the latter.

3. In a stamping machine, the combination of a fixed dial; a rotatablehead having means to indicate on the dial the positioning of the head; aseries of dies slidably carried by the head; a lever to impart slidingmovement to the dies; a rotatable disk to support a plate upon which acharacter is to be stamped; a spring fingerto maintain the plate on thedisk; and pawl and ratchet mechanism connected to said disk and actuatedby the lever when a character is stamped upon the plate to advance theplate support and plate a predetermined distance.

4. In a stamping machine, the combination of a fixed dial; a rotatablehead having means to indicate on the dial the positioning of the head; aseries of dies slidaloly carried by the head; a lever to impart slidingmovement to the dies; a rotatable disk to support a plate upon which acharacter is to be stamped; a spring finger to maintain the plate on thedisk; pawl and ratchet mechanism connected to said disk and actuated bythe lever when a character is stamped upon the plate to advance theplate support and plate a predetermined distance; and means to limit theadvancing movement of the plate support.

5. In a stamping machine, the combination of a fixed dial; a rotatablehead hav ing means to indicate on the dial the positioning of the head;a series of dies slidably carried by the head; a lever to impart slidingmovement to the dies; a rotatable disk to support a plate upon which acharacter is to be stamped; a ratchet wheel connected to said support; abell crank lever; a spring influenced pawl to cooperate with the ratchetwheel carried by one arm of the lever; a cam connected to the dieactuating lever; an arm connected to the bell crank lever engaged by theactuating lever arm cam to actuate the pawl and ratchet wheel to rotatesaid wheel and connected disk a predetermined distance upon theactuation of a die; and a spring to return the bell crank lever and armto initial position.

6. In a stamping machine, the combination of a fixed dial; a rotatablehead having means to indicate on the dial the positioning of the head; aseries of dies slidably carried by the head; a lever to impart slidingmovement to the dies; a rotatable disk to support a plate upon which acharacter is to be stamped; a ratchet wheel connected to said support; abell crank lever; a spring influenced pawl to cooperate with the ratchetwheel carried by one arm of the bell crank lever; a cam connected to thedie actuating lever; an arm connected to the bell crank lever engaged bythe lever cam to actuate the pawl and ratchet wheel to rotate said wheeland connected disk a predetermined distance upon the actuation of a die;a spring to return the bell crank lever and connected arm to initialposition; and adjustable means engaged by the bell crank lever to limitthe movement thereof and thereby the movement of the ratchet wheel andconnected plate carrying disk.

7. In a stamping machine, the combination of a fixed dial; a rotatablehead having means to indicate on the dial the positioning of the head; aseries of dies slidably carried by the head; a lever to impart slidingmove ment to the dies; a rotatable disk to support a plate upon which acharacter is to be stamped; a ratchet wheel connected to said support; abell crank lever; a spring influenced pawl to cooperate with the ratchetwheel carried by one arm of the bell crank lever; a cam connected to thedie actuating lever; an arm connected to the bell crank lever engaged bythe lever cam to actuate the pawl and ratchet wheel to rotate said wheeland connected disk a predetermined distance upon the actuation of a die;a spring to return the bell crank lever and connected arm to initialposition; and adjustable means engaged by the bell crank lever to limitthe movement thereof and thereby the movement of the ratchet wheel andconnected plate carrying disk, comprising a cam, a detent connected tothe cam, and a notched segment in any notch of which segment the detentis adapted to engage to lock the cam in adjusted position.

8. In a stamping machine of the character specified, the combination ofa rotatable head having means to indicate the positioning'thereof; aseries ofdies slidably'carried by the head; a rocker to impart movementto the dies;' a lever to actuate'the rocker; a rotatable support for aplate upon which characters are to be stamped; pawl andratchet mechanismto rotate the plate support; means connected to the lever to actuate thepawl and ratchet mechanism and thereby rotate the plate support apredetermin'ed distance 1115011 the actuation of a die; and adjustablemeans to limit the movement of the ratchet and connected plate Copies ofthis patent may be obtained for five cents each, by addressing theCommissioner of Patents,

Washington, D. C.

